<template>
  <div class="login-container">
    <el-form ref="loginForm" :model="loginForm" :rules="loginRules" class="login-form" auto-complete="off" label-position="left">
      <div class="title-container">
        <!-- 采用图片作为登录表单的头部 -->
        <img src="@/assets/common/login-logo.png" alt="" />
      </div>

      <el-form-item prop="mobile">
        <span class="svg-container">
          <svg-icon icon-class="user" />
        </span>
        <el-input ref="mobile" v-model="loginForm.mobile" placeholder="请输入手机号码" name="mobile" type="text" tabindex="1" auto-complete="off" />
      </el-form-item>

      <el-form-item prop="password">
        <span class="svg-container">
          <svg-icon icon-class="password" />
        </span>
        <el-input
          :key="passwordType"
          ref="password"
          v-model="loginForm.password"
          :type="passwordType"
          placeholder="请输入密码"
          name="password"
          tabindex="2"
          auto-complete="off"
          @keyup.enter.native="handleLogin"
        />
        <span class="show-pwd" @click="showPwd">
          <svg-icon :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'" />
        </span>
      </el-form-item>

      <el-button class="loginBtn" :loading="loading" type="primary" style="width: 100%; margin-bottom: 30px" @click.native.prevent="handleLogin">Login</el-button>

      <!--  <div class="tips">
        <span style="margin-right: 20px">mobile: 13800000002</span>
        <span>password: 888itcast.CN764%...</span>
      </div> -->
    </el-form>
  </div>
</template>

<script>
// 导入校验规则
// import { validMobile } from '@/utils/validate'
import { mapActions } from 'vuex'

export default {
  name: 'Login',
  data() {
    // 验证手机号码
    const validatemobile = (rule, value, callback) => {
     /*  if (!validMobile(value)) {
        return callback(new Error('手机号码格式不正确'))
      } */
      callback()
    }
    // 验证密码
    /*  const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        return callback(new Error('密码长度不少于6位'))
      }
      callback()
    } */
    return {
      // 登录表单数据
      loginForm: {
        mobile: '13800000002',
        password: '888itcast.CN764%...'
      },
      // 校验规则
      loginRules: {
        mobile: [
          { required: true, trigger: 'blur', message: '手机号码必填' },
          // 自定义校验规则
          { validator: validatemobile, trigger: 'blur' }
        ],
        password: [
          { required: true, trigger: 'blur', message: '密码不能为空' },
          { min: 6, trigger: 'blur', message: '密码长度最低为6位' }
          // { validator: validatePassword, trigger: 'blur' }
        ]
      },
      loading: false,
      passwordType: 'password',
      // 保存上次退出前的路由地址
      redirect: undefined
    }
  },
  watch: {
    $route: {
      // 不能写成箭头函数，否则获取不到组件对象，就不能使用this
      handler(route) {
        // console.log(this) // VueComponent
        // this.redirect = route.query && route.query.redirect
        this.redirect = route.query?.redirect
      },
      immediate: true
    }
  },
  methods: {
    ...mapActions('user', ['login']),
    //  切换密码的显示和隐藏
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = 'text'
      } else {
        this.passwordType = 'password'
      }
    },
    // 登录
    handleLogin() {
      this.$refs.loginForm.validate(async valid => {
        // 校验不通过
        if (!valid) return false
        try {
          // 设置loading中
          this.loading = true
          // 调用vuex的actions来实现登录
          await this.login(this.loginForm)
          // 提示信息
          this.$message.success('登录成功')
          // 跳转到首页或者原来登录时的页面
          const url = this.$route.query.redirect ? decodeURI(this.$route.query.redirect) : '/'
          console.log(url)
          this.$router.push(url)
        } catch (err) {
          // this.$message.error(err.message)
        } finally {
          // 无论是成功还是失败都会走这里
          // 设置loading结束
          this.loading = false
        }
      })
    }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

.svg-icon {
  width: 1em !important;
  height: 1em !important;
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 1000px $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #68b0fe; // 将输入框颜色改成蓝色

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;

  background-image: url('~@/assets/common/login.jpg'); // 设置背景图片
  background-position: center; // 将图片位置设置为充满整个屏幕
  .title-container {
    margin: 0 auto 40px;
  }
  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(255, 255, 255, 0.7); // 输入登录表单的背景色
    border-radius: 5px;
    color: #454545;
    // 设置文本输入框的颜色
    ::v-deep .el-input {
      input {
        color: $light_gray;
      }
    }
  }
  .el-form-item__error {
    color: #fff;
  }

  .login-form {
    position: relative;
    width: 520px;
    max-width: 100%;
    padding: 160px 35px 0;
    margin: 0 auto;
    overflow: hidden;
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;

    .title {
      font-size: 26px;
      color: $light_gray;
      margin: 0px auto 40px auto;
      text-align: center;
      font-weight: bold;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }
  .loginBtn {
    background: #407ffe;
    height: 64px;
    line-height: 32px;
    font-size: 24px;
  }
}
</style>
